diff --git a/6Net_Data/packages.config b/6Net_Data/packages.config
index 54fcc0f..da5471d 100644
--- a/6Net_Data/packages.config
+++ b/6Net_Data/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="BouncyCastle" version="1.8.3.1" targetFramework="net47" />
   <package id="EntityFramework" version="6.2.0" targetFramework="net47" />
-  <package id="Google.Protobuf" version="3.6.1" targetFramework="net47" />
+  <package id="Google.Protobuf" version="3.15.0" targetFramework="net47" />
   <package id="MySql.Data" version="8.0.16" targetFramework="net47" />
   <package id="MySql.Data.EntityFramework" version="8.0.16" targetFramework="net47" />
   <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net47" />